We first wrote about the DTV Shredder late last year - a wild, go-anywhere cross between a Segway and a powerboard, with twin tank tracks and a steering/control column to hang on to as you blast through the underbrush at frightening speed. Well, it seems like many fun extreme sports ideas, the Shredder may end up being co-opted by the military. And to that end, DTV has designed the Jackal - a hybrid-drive, weather and waterproof, militarised version of the Shredder that's fitted with twin grenade launchers and a full remote control system that allows it to operate as an unmanned ground vehicle. The Jackal can sneak silently across contested areas in fully electric drive modeand lay an explosive smackdown on hidden enemies with no risk to live soldiers.